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How to sort a Ruby Hash by number value?
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Best way in any case (as per Mladen) is:
metrics = {"sitea.com" => 745, "siteb.com" => 9, "sitec.com" => 10 }
metrics.sort_by {|_key, value| value}
# ==> [["siteb.com", 9], ["sitec.com", 10], ["sitea.com", 745]]
If you need a hash as a result, you can use to_h (in Ruby 2.0+)
metr...
Tar archiving that takes input from a list of files
...Martin York
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What is the best way to do a substring in a batch file?
...however: Substrings are done using the :~start,length notation:
%var:~10,5%
will extract 5 characters from position 10 in the environment variable %var%.
NOTE: The index of the strings is zero based, so the first character is at position 0, the second at 1, etc.
To get substrings of argument v...
Read-only and non-computed variable properties in Swift
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357
Simply prefix the property declaration with private(set), like so:
public private(set) var hou...
How to get UTC time in Python?
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185
Try this code that uses datetime.utcnow():
from datetime import datetime
datetime.utcnow()
Fo...
What is database pooling?
... | \------/
(4) | ^
| | (5)
| +-------+ (6) +-----------+
#===> | Close | ======> | RealClose |
+-------+ +-----------+
In it's simplest form, it's just a similar API call (1)...
How to get values from IGrouping
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answered Dec 15 '11 at 13:56
Matt SmithMatt Smith
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MySQL DISTINCT on a GROUP_CONCAT()
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Daniel Vassallo
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answered Jun 21 '10 at 9:41
NaktibaldaNaktibalda
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What is the meaning of the prefix N in T-SQL statements and when should I use it?
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425
It's declaring the string as nvarchar data type, rather than varchar
You may have seen Trans...